Pipe-molding machine



(No Model.) A

' P. SHIGKLE.

' PIPE MOLDING MACHINE.

No. 289,036. Patented Nov. 27, 1883.

in van $01 I (Z fifiZ N. PETERS, Phawlilhugnphnr. Washingion, w c.

UNITE STATES ATEN'r FFlGE.

FREDERICK SHICKLE, OF ST. LOUIS, MISSOURI.

PIPE-MOLDlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 289,036, dated November 27, 1888,

Application filed July 27, 1883.

To all whom it may concern.-

Be it known that I, FREDERICK SnIoKLn, of St. Louis, Missouri, have made a new and useful, Improvement in Pipe-Molding Apparatuses, of which the following is afull, clear, and exact description, reference being bad to the annexed drawings, making part of this specification, in which-- Figure 1 is a view in perspective, showing a flask-bottom having the improvement; Fig. 2-, a vertical section; Fig. 3, a vertical section upon-an enlarged scale, showing a portion of the flask-bottom before the coating is applied to the socket; Fig. 4, a vertical section, showing the-coating formed upon the socket; and Fig. 5, a section similar to that of Fig. 4, but in a different plane.

The same letters denote the same parts.

In a pending application for Letters Patent I have described an improvement in pipeniolding apparatus for forming the bell of the pipe, and consisting in the mode of constructing the socket which receives the lower end of the core-bar. r

This improvement relates to the means employed in molding the coating upon the corebar socket.

A represents the flask-bottom, having the socket B and socket-coating C, as in the construction referred to.

The coating 0 is formed upon the socket B, as follows: A boxing, 1), preferably in three parts, d (Z d, is placed around the socket and centered by means of a ring, E, which is dropped between the lugs a a of the flask-bottom and the boxing, or, rather, the lugs d d of the boxing. The boxing rests upon slight elcvations a a upon the. flask-bottom. These seats a, a, however, are not wide enough to practically interfere with the application of the coating material to the flask-bottom at c. The several parts d (1 d of the boxing are suitably united, as by the bolts and keys d (P. A

(No modem ring, F, is placed in the socket B. The coat ing 0 is then molded upon the socket between the boxing D and ring F, and in doing this the device H H is inserted. This device is in practice inserted before the coating material is entirely filled into the boxing, and after its insertion, as shown, the coating is completed, so that the device H H, when the coating is completed, is entirely beneath the coating. So far as this mode of forming a coating upon the socket is concerned, the device H H may or may not be used. The ring F at f is shaped so that when the core is ultimately placed in the socket there is a narrow annular space left between the core and the coating, the purpose of which is when the core is placed in the socket the lower end of the core is dropped slightly below the top of the coating, for by causing the coating to lap the core slightly there is no liability of the pipe internally being too small in diameter. The metal, in casting, runs into the annular space left between the core and coating, forming a thin annular fin, which, when the pipe is cast, can be readily removed therefrom.

I claim- 1. The combination of the boxing D, the bottom A, and the ring E, as and for the purpose referred to.

2. The combination of the bottom A, the socket B, the boxing D, and the ring F, substantially as described.

3. The combination of the bottom A, the socket B, the boxing D, and the rings E F, substantially as described,

4. In combination with the socket B, the ring F, having the projectionf, for the purpose described.

FREDERICK SHIGKLE.

W'itnesses:

0. D. MOODY, J. \V. Honn. 

